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where M is the beam magnification provided by the beam expander that multiplies the angular dispersion provided by the diffraction grating. In practice, M can be as high as 100-200. [8] [11] When the dispersion of the multiple-prism expander is not equal to zero, then the single-pass linewidth is given by [5] [8]
A particle may diffuse to a surface in quiescent conditions, but this process is inefficient as a thick depletion layer develops, which leads to a progressive slowing down of the deposition.
"Transients in distributed chemical reactors. Part 2: Influence of diffusion in the simplified model" (with I.H. Farina). Chem. Eng. J. 4, 149–170 (1972). "Asymmetries generated by diffusion and reaction, and their bearing on active transport through membranes" (with K.H. Keller). Proc. Natl. Acad Sci. USA 69, 777–779 (1972).
Dispersion Technology Inc is a scientific instrument manufacturer located in Bedford Hills, New York. [1] It was founded in 1996 by Philip Goetz (former chairman , retired in 2010) and Dr. Andrei Dukhin (current CEO). [ 3 ]
Dispersion is a process by which (in the case of solid dispersing in a liquid) agglomerated particles are separated from each other, and a new interface between the inner surface of the liquid dispersion medium and the surface of the dispersed particles is generated. This process is facilitated by molecular diffusion and convection. [4]
A dispersion relation relates the wavelength or wavenumber of a wave to its frequency. Given the dispersion relation, one can calculate the frequency-dependent phase velocity and group velocity of each sinusoidal component of a wave in the medium, as a function of frequency
The last set of calculations requires information on viscosity and dielectric permittivity of the dispersion medium; appropriate electrophoresis theory is also required. Sample dilution is often necessary to eliminate multiple scattering of the incident laser beam and/or particle interactions.
Separation and Purification Technology is a peer-reviewed scientific journal published by Elsevier, covering methods for separation and purification in chemical and environmental engineering, including research on the separation and purification of liquids, vapors, and gases, as well as carbon capture and separation, excluding methods intended for analytical purposes, soil science, polymer ...